IMPORTANT INFORMATION:
As of 27-Feb-2015, customer orders and communications will be
processed by Southco, Inc. For sales, technical, or order
fulfillment questions, please contact Southco customer service via
email at info@southco.com, on
the web at www.southco.com, or
via phone at 610.459.4000

* is the "Stud Grip" from the table.
For example, 121J-540-Z3CT is an oval head stud with a "Stud
Grip" of 40.

The undercut is a part of the stud which is smaller in
diameter than the stud shank. The undercut is located directly
under the head. This decreased diameter is where the retainer
fits to prevent the stud from coming out of the mounting hole.

Note: For all raised head styles, the "G"
(Grip) and "U" (Undercut) dimensions are measured to the
underside of the head. For the flush head style, the
"G" (Grip) and "U" (Undercut) dimensions are
measured to the top of the head.

Type SE

ST-1200 Line studs may be ordered as SE (Self Ejecting)
assemblies. A stainless steel ejecting spring and a black plastic
cup are sold attached to the stud. The SE ejection is partial,
being limited by the length of the stud undercut not occupied by
the cup, panel, and stud retainer. Ejection will normally be
sufficient to give a visual cue of an unlocked stud. Also,
ejecting spring tension holds an opened stud firmly, easing
removal and replacement of vertical panels and panels with multiple
fasteners.

We recommend the Z3CT finish instead of the Z3YT finish. The Z3CT finish is much more cost effective and provides the same salt spray benefits as the Z3YT finish. (RoHS Compliant)Specification(s): ASTM-B-633, Type II, SC 2, Yellow
Suffix:-Z3YT

The colored finishes offer no advantage over the clear other than
the color, and they are more expensive.